Spudding attachment.



J. W. MILLER. SPUDDIN G ATTAGHMBN T. APPLIOATION FILED DBO. 3, 1912.

1,100,0 6, Patented June 16,1914.

COLUMBIA PLANOORAPH CL?" WASHINGTON. n. c.

JOHN 'W. MILLER, 01? AKRON, OHIO.

SPUDDING ATTACHMENT.

Specification of Letters Patent.

Patented June 16, 1914.

Application filed December 3, 1912. Serial No. 734,782.

To all whom it may concern:

Be it known that 1, JOHN \V. MILLER, a citizen of the United States, residing at Akron, in the county of Summit and State of Ohio, have invented new and useful Improvements in Spudding Attachments, of which the following is a specification.

This invention relates to spudding attachment for well-drilling machines and the object thereof is to produce a simple device for accomplishing the spudding operation and so arranged that the tools may be drawn from and lowered into the well without disconnecting the rope from the spudding attachment, thereby avoiding the delay and,

inconvenience of removing the rope from the spudding sheave and the idler sheave when raising or lowering the tools, thus re ducing the time required for the drilling operation.

WVith the foregoing and other objects in view, the invention consists in the novel construction, combination and arrangement of parts constituting the invention to be hereinafter specifically described and illustrated in the accompanying drawings which form a part hereof wherein is shown the preferred embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come within the scope of the claim hereunto appended.

In the drawings in Which similar reference numerals indicate like parts in the different figures, Figure 1, is a side elevation of a spudding attachment embodying this invention, and so much of a well-drilling machine as will illustrate the operation of the former; and, Fig. 2, is a plan view of the mechanism shown in Fig. 1 with the sand line reel omitted.

Referring to the drawings in detail the reference niunerals 1 and 2 denote the side frame-forming members of a well-drilling machine which is customarily supported on ground wheels (not shown), and these two side members are connected by a plurality of cross bars 3. The frame is further provided with an upright derrick 4 at the upper end of which is a sheave 5 conforming to the ordinary method of constructing derricks for well-drilling machines.

Mounted 011 suitable hearings in the members 1 and 2 is a shaft 6 on which is mount ed a reel 7 on which is wound a rope 8. The reel 7 is adapted to be rotated in the ordinary manner for winding or unwindmg the rope for raising or lowering the tools, but as the specific mechanism for operating it is not important to this inventlon it is not shown.

Extending between the members 1 and 2 and mounted in suitable bearings thereon is a shaft 9 bearing an idler sheave 10 around which the rope 8 passes. Loosely mounted on the shaft 9 are a pair of arms 11 which converge and unite to form a triangularly-shaped yoke provided with a proecting arm 1.2 on which is pivotally mounted a spudding sheave 13 arranged to engage the upper face of the rope between the idler sheave 10 and the sheave 5 at the top of the derrick 4. It will be seen that as the sheave 12 is mounted on the yoke composed of the members 11 it will oscillate with the shaft 9 as an aXis.

Extending between suit-able bearings 14 on the side members 1 and 2 of the frame is a rotary shaft 15 which bears a hub 16 from which extends a rocking arm 17 to the outer end of which is pivotally connected a link 18 the opposite end of which is pivotally connected with the pivot 19 of the sheave 13. The front end of the shaft 15 in Fig. 1 bears a rocking arm 20 to the free end of which is pivotally attached a connecting rod 21 the opposite end of which is pivotally connected to a crank 22 outside of the frame and mounted on a shaft 23 extending between suitable bearings on the frame members 1 and 2 so that as the shaft 23 is rotated it will cause an oscillatory movement of the sheave 13 through the heretofore described mechanism and which, by engaging the rope 8, will perform the spudding operation. The shaft 23 is preferably provided with a clutch 2 1 by which motion communicated to the spudding mechanism may be interrupted at will.

The side member bears a sand-pumplinereel 25 and other mechanism which usually accompanies a well-drilling machine, but as these are not essential to the understanding of the operation of the spudding attachment shown in the drawings, a description of them is, for the purpose of brevity, omitted.

It will be noted that the sp-udding operation may be performed in the ordinary manner through the medium of the mechanism shown and described, and if it is desired to raise the tools from the well or lower them, it may be done without removing the rope 8 from the sheaves 10 and 13 and the winding or unwinding of the rope Son the reel 7 may be accomplished without undue friction, thereby eliminating the constant delay due to removing the rope from the two sheaves each time different operations of the machine are contemplated.

I claim In a well-drilling machine, the combination with the side bars of the frame, of a driving shaft supported in hearings on said bars, a crank-arm at one end of said shaft, a shaft parallel with the driving shaft carrying an idler sheave, a yoke comprising converging arms pivotally supported on said idler-sheave shaft, a spudding sheave mounted between the free ends ofsaid'yoke,

M. Copies of this patent may be obtained for five cents each, by addressing the said crank-arm with the crank-arm of the driving shaft.

In testimony whereof I have hereunto set my hand 1n presence of two subscribing witnesses.

JOHN W. MILLER. Witnesses:

A. L. MoCLINTooK, C. E. HUMPHREY.

Commissioner of Patents,

1 Washington, D. G. 

